Heejung Ahn

Based in Chino, San Bernardino County, Heejung Ahn holds California contractor license #1142536, classified B (General Building, C15 Flooring and Floor Covering, C46 Solar, HAZ Hazardous Substance Removal Certification). The license was active and clear when this listing was compiled.

A C-46 solar license covers installing solar energy systems — panels, mounting, inverters and the associated electrical work.

Working in the Inland Empire: The region sits between the San Andreas and San Jacinto fault systems, so seismic requirements are woven through the building code here in ways they are not everywhere.

Before you hire any solar installation contractor: Get the production estimate in writing along with what happens if the system underperforms it. Ask whether a battery is included and what it is actually sized to cover.

License status can change at any time. Confirm license #1142536 is current, and check bond and workers’ compensation coverage, using the CSLB license lookup before signing a contract or paying a deposit.

This profile was compiled from California State License Board public records and is unclaimed — Heejung Ahn has not added its own details. Are you the owner? Claim this listing to add photos, services and a description of your work, or contact us to have it removed.